Fixed depth treatment device for seepage well filling material layer blockage suspensions and method thereof

[0036] The invention provides a device for fixed depth treatment of clogged suspended matter in the filter material layer of seepage well, such as figure 1 As shown, it includes an air bag 1, the air bag 1 is covered with a steel pipe 2, one end of the steel pipe 2 is located at the lower part of the air bag 1, and a submersible pump 4 is connected through a backfill converter 3; the steel pipe 2 is another One end is located at the top of the airbag 1, and is connected with a centrifugal pump 6 through a three-way valve 5, and the centrifugal pump 6 is connected with a water tank 7; the airbag 1 is provided with an air inlet and an air outlet, and the air inlet is installed There is an air intake valve 8, the air intake valve 8 is connected with an air intake pump 9, and an air outlet valve 10 is installed on the air outlet. The outlet valve 10 includes a valve seat 11 and a valve handle 12 located on the valve seat 11, a tension spring 13 is connected to the bottom of the valve

[0040] This embodiment is a further improvement made on the basis of Embodiment 1, including all the technical features in Embodiment 1, such as figure 1 As shown, the device provided by the present invention for fixed-depth treatment of suspended solids in the seepage well filter layer can also include a wellhead fixing frame 21, and the wellhead fixing frame 21 is connected to the steel pipe 2 through a steel wire pipe 22, and the pulling wire 14 Winding on the wellhead fixing frame 21. Such as image 3 As shown, the wellhead fixing frame 21 is a foldable tripod, and the tripod is fixedly placed at the wellhead. Another modification made to the airbag 1 in Embodiment 1 includes opening a closed hole through the airbag 1 up and down, and the steel pipe 2 is a 4-inch steel pipe, which is located in the closed hole. The outer wall of the airtight hole is made of elastic material, which is closely attached to the outside of the steel pipe 2, and the air bag 1 can follow the steel

[0042] On the basis of Embodiment 1 and Embodiment 2, the present invention also provides a kind of treatment method of fixed depth treatment seepage well filter layer clogged suspended matter, and this method comprises the following steps:

[0043] (1) Equipment installation; put the submersible pump 4, the recharging and lifting converter 3 and the air bag 1 into the seepage well 23 in turn, the upper end of the air bag 1 at the initial position is 50cm lower than the upper end of the filter pipe in the seepage well 23, and use a tripod at the same time Fix the steel wire pipe 22; put the external water pipe of the centrifugal pump 6 into the water tank 7;

[0044] (2) Dredge the seepage well at a fixed depth; start the air intake pump 9 to inflate the air bag 1 until the air bag 1 is in close contact with the inner wall of the seepage well 23; turn on the centrifugal pump 6, and the water flow enters the seepage through the steel pipe 2 and the recirculation return converter 3;